S-91812A230 0.34" ID x 0.53" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through dual-sided serrations that bite into mating surfaces, preventing loosening under dynamic loads
• Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments
• Enhanced durability and wear resistance from case hardening to Rockwell C51 hardness, maintaining locking performance through repeated use
• Versatile compatibility with both inch (5/16") and metric (M8) fastener systems, reducing inventory complexity
• Reliable performance in extreme conditions due to precise dimensional control (0.070-0.090" thickness range) ensuring consistent clamping force
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
• Optimized load distribution through wedge-lock design that increases clamping force as vibration intensifies

Professional Applications & Engineering Value

This 316 stainless steel wedge lock washer addresses critical vibration-induced failure points in industrial machinery, transportation equipment, and structural assemblies. The top and bottom serrations create multiple biting edges that resist rotational movement, while the case hardened surface maintains serration sharpness through installation cycles. Engineers specify this solution for heavy-duty applications where conventional washers fail, particularly in vibration-prone environments like rotating equipment, engine mounts, and construction machinery. The dual measurement system compatibility (inch and metric) provides design flexibility across global projects, with the corrosion-resistant 316 stainless steel composition ensuring long-term reliability in chemically aggressive or outdoor settings.

Specification Summary & Compliance

Precision-engineered with ID 0.34", OD 0.53", and thickness range 0.070-0.090" for consistent performance with 5/16" and M8 fasteners. Manufactured to exacting standards with case hardening treatment achieving Rockwell C51 hardness for optimal wear resistance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. The wedge lock design with dual serration surfaces provides mechanical locking action that exceeds conventional flat washers in vibration resistance applications.